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alyssababy7
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x varies inversely as y^2, and x = 4 when y = 10. Find x when y = 2.
A. x = 16
B. x = 5
C. x = 80
D. x = 100
 2 years ago
 2 years ago
alyssababy7 Group Title
x varies inversely as y^2, and x = 4 when y = 10. Find x when y = 2. A. x = 16 B. x = 5 C. x = 80 D. x = 100
 2 years ago
 2 years ago

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ChmE Group TitleBest ResponseYou've already chosen the best response.1
\[x=\frac{ k }{ y^2 }\rightarrow 4=\frac{ k }{ 10^2 }\rightarrow k=400\]\[x=\frac{ 400 }{ y^2 }\rightarrow x=\frac{ 400 }{ 2^2 }\rightarrow x=100\]
 2 years ago

ChmE Group TitleBest ResponseYou've already chosen the best response.1
k is a proportionality constant
 2 years ago
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